The distribution of arbuscular mycorrhizas in the British flora.
The distribution of arbuscular mycorrhizas in the British flora.
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DOI：
10.1111/j.1469-8137.1993.tb03933.x
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发表时间：
1993-12
期刊：
影响因子：
--
通讯作者：
H. Peat;A. Fitter
中科院分区：
文献类型：
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作者：
H. Peat;A. Fitter
丛枝菌根（AM）与高等植物的关联在许多生态系统中很常见，但有些植物物种始终从未或很少受到感染。这些物种可能在形态上不同，或发生在不同的栖息地，从物种通常是菌根。英国被子植物的生态学的一个大的数据集被用来测试英国被子植物的菌根状态和几个形态和环境变量（生活型，根直径，种子重量，土壤肥力，土壤水分供应，土壤pH值和栖息地类型）之间的关系。土壤肥力或土壤水分有效性与AM真菌感染频率之间没有关系。AM物种，但是，可以生长在一个更高的pH值比非菌根物种和多年生AM物种的栖息地类型发生在一个显着更多的比多年生物种，从来没有，或很少，丛枝菌根。非菌根物种往往具有较细的根、较小的种子，主要出现在水生、湿地和盐碱栖息地。
Arbuscular mycorrhizal (AM) associations with higher plants are common in many ecosystems but some plant species are consistently never or rarely infected. These species may differ morphologically or occur in different habitats from species which are usually mycorrhizal. A large data-set on the ecology of British angiasperms was used to test for relationships between the mycorrhizal status of British angiosperms and several morphological and environmental variables (life form, root diameter, seed weight, soil fertility, soil water availability, soil pH and habitat type). No relationship was found between soil fertility or soil water availability and frequency of infection with AM fungi. AM species, however, can grow in habitats with a higher pH than non-mycorrhizal species and perennial AM species occur in a significantly greater number of habitat types than perennial species which are never, or rarely, arbuscular mycorrhizal. Non-mycorrhizal species tend to have thinner roots, smaller seeds and occur mainly in aquatic, wetland and saline habitats.